Home / 27,309.38-40,979.98-11,513.43

Finding the Fourth Proportional to 27,309.38, 40,979.98 and 11,513.43

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Solution

The fourth proportional to 27,309.38, 40,979.98 and 11,513.43 is: 17,276.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.38 : 40,979.98 = 11,513.43 : x
  2. Step 2: Convert to fraction form
    27,309.38/40,979.98 = 11,513.43/x
  3. Step 3: Cross multiply
    27,309.38x = 40,979.98 × 11,513.43
  4. Step 4: Simplify right side
    27,309.38x = 471,820,145.52
  5. Step 5: Solve for x
    x = 471,820,145.52/27,309.38
  6. Step 6: Final answer
    x = 17,276.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.